(0 7 4)(1 19 3)(2 10 6)(5 11 8)(9 14 12)(13 17 15)(16 20 18)
ALLOWS (11/8)-SEQUENCE
1: (2 10 20)

(0 7 4)(1 19 3)(2 18 16 20 6)(5 11 8)(9 14 12)(10)(13 17 15)
2: (1 19 3)

(0 7 4)(1)(2 18 16 20 6)(3)(5 11 8)(9 14 12)(10)(13 17 15)(19)
3: (2 18 6)

(0 7 4)(1)(2)(3)(5 11 8)(6 16 20)(9 14 12)(10)(13 17 15)(18)(19)
4: (5 11 8)

(0 7 4)(1)(2)(3)(5)(6 16 20)(8)(9 14 12)(10)(11)(13 17 15)(18)(19)